496 results on '"McEntee, Kathleen"'
Search Results
2. Fasting triglyceride concentrations are associated with markers of lipid metabolism and glucose homeostasis in healthy, non-obese dogs in lean and overweight condition.
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Gomez-Fernandez-Blanco, Carlos, Peeters, Dominique, Farnir, Frédéric, Höglund, Katja, Gouni, Vassiliki, Wiberg, Maria, Lundgren Willesen, Jakob, Hanås, Sofia, McEntee, Kathleen, Tiret, Laurent, Häggström, Jens, Lohi, Hannes, Chetboul, Valérie, Fredholm, Merete, Seppälä, Eija, Lequarré, Anne-Sophie, James German, Alexander, and Merveille, Anne-Christine
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FREE fatty acids ,BLOOD cholesterol ,LIPID metabolism ,GLUCOSE metabolism ,METABOLIC syndrome - Abstract
Serum triglyceride concentrations increase in dogs with obesity, which is typically assessed by body condition score (BCS), however little is known about changes that take place in non-obese dogs in overweight condition. Further, the associations of triglyceride levels with other markers of energy homeostasis are poorly characterised in healthy animals. The present study aimed to evaluate associations between both BCS and triglyceride concentrations with other markers of lipid and glucose metabolism in healthy, non-obese dogs, as well as to assess whether these markers change significantly in non-obese dogs with overweight as compared to their lean counterparts. Serum concentrations of cholesterol, free fatty acids, triglycerides, insulin, glucose and fructosamine were measured in 532 healthy, client-owned dogs, assigned either to 'lean' (BCS: 3-5) or 'overweight' (BCS: 6-7) categories. Generalised linear mixed models were used to assess associations between BCS categories, triglyceride concentrations and other variables, correcting for the effect of breed. Compared with lean dogs, overweight dogs had a greater serum cholesterol concentration (95% CI, 5.3-6.2 mmol/L or 205-237 mg/dL versus 5.1-5.4 mmol/L or 198-210 mg/dL, p = 0.0032), insulin concentration (95% CI, 17.5-22.1 µU/ml versus 16.7-18.0 µU/ml, p = 0.0374) and were older (95% CI, 4.0-5.3 versus 3.4-3.7 years, p = 0.0005). Triglyceride concentrations were positively associated with fructosamine (r2 = 0.31, p = 0.0012), cholesterol (r2 = 0.25, p < 0.0001), insulin (r2 = 0.14, p = 0.0030) and glucose (r2 = 0.10, p = 0.0014) concentrations, and negatively associated with free fatty acid concentrations (r2 = 0.11, p < 0.0001). However, there was no association between triglyceride concentrations and age. In conclusion, both BCS and triglyceride concentrations were associated with other markers of glucose and lipid metabolism in non-obese healthy dogs, amongst which those with overweight showed metabolic changes as compared to their lean counterparts. Triglyceride concentrations were associated with an increase in insulin and fructosamine concentrations that might reflect an earlyphase impairment in glucose tolerance which, surprisingly, was concurrent with lower basal free fatty acid concentrations. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Early Alteration of Right Ventricle–Pulmonary Artery Coupling in Experimental Heart Failure With Preserved Ejection Fraction
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Hubesch, Géraldine, primary, Dewachter, Céline, additional, Chomette, Laura, additional, Hupkens, Emeline, additional, Jespers, Pascale, additional, Vegh, Grégory, additional, Doppler, Mathilde, additional, Mohammad, Umair Sheikh, additional, Thiriard, Anaïs, additional, Remmelink, Myriam, additional, Vachiéry, Jean‐Luc, additional, McEntee, Kathleen, additional, and Dewachter, Laurence, additional
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- 2024
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4. Left ventricular eccentricity index to assess precapillary pulmonary hypertension in dogs.
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Lekane, M, Burnotte, P, Gommeren, K, McEntee, Kathleen, Merveille, Anne Christine, Lekane, M, Burnotte, P, Gommeren, K, McEntee, Kathleen, and Merveille, Anne Christine
- Abstract
Interventricular septal flattening, frequently present in pulmonary hypertension (PH) can be quantified by the left ventricular eccentricity index (EI) measured at end-diastole (EId), end-systole (EIs) and at maximal septal flattening (EIm). In humans, EI correlates with invasive pulmonary arterial pressure. The aim of this study was to evaluate if EI correlates with parameters of right heart remodeling (RHR) and if EI is a quantitative marker of PH in dogs., info:eu-repo/semantics/published
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- 2024
5. Early Alteration of Right Ventricle-Pulmonary Artery Coupling in Experimental Heart Failure With Preserved Ejection Fraction.
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Hubesch, Geraldine, Dewachter, Céline, Chomette, Laura, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Doppler, Mathilde, Sheikh Mohammad, Umair, Thiriard, Anaïs, Remmelink, Myriam, Vachiery, Jean-Luc, McEntee, Kathleen, Dewachter, Laurence, Hubesch, Geraldine, Dewachter, Céline, Chomette, Laura, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Doppler, Mathilde, Sheikh Mohammad, Umair, Thiriard, Anaïs, Remmelink, Myriam, Vachiery, Jean-Luc, McEntee, Kathleen, and Dewachter, Laurence
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Pulmonary hypertension and right ventricular (RV) dysfunction are major prognostic determinants in patients with heart failure with preserved ejection fraction (HFpEF). The underlying pathomechanisms remain unknown. In this context, we sought to study the pathogenesis of pulmonary hypertension and RV dysfunction in a rat model of obesity-associated HFpEF., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2024
6. Roles of inflammation and apoptosis in experimental brain death–induced right ventricular failure
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Belhaj, Asmae, Dewachter, Laurence, Rorive, Sandrine, Remmelink, Myriam, Weynand, Birgit, Melot, Christian, Galanti, Laurence, Hupkens, Emeline, Sprockeels, Thomas, Dewachter, Céline, Creteur, Jacques, McEntee, Kathleen, Naeije, Robert, and Rondelet, Benoît
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- 2016
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7. Characterization of renal anomalies in an experimental model of heart failure with preserved ejection fraction (HFpEF) in rats
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Basic Science Research in Cardiology (07-12-2023: Ku Leuven, Leuven, Belgium), Sheikh Mohammad, Umair, Hubesch, Geraldine, Van Eycken, Marie, Rorive, Sandrine, Nortier, Joëlle, El Fahsi, Bilal, Vegh, Grégory, Singh, Sumeet Pal, Hupkens, Emeline, Jespers, Pascale, McEntee, Kathleen, Vachiery, Jean-Luc, Dewachter, Céline, Dewachter, Laurence, Basic Science Research in Cardiology (07-12-2023: Ku Leuven, Leuven, Belgium), Sheikh Mohammad, Umair, Hubesch, Geraldine, Van Eycken, Marie, Rorive, Sandrine, Nortier, Joëlle, El Fahsi, Bilal, Vegh, Grégory, Singh, Sumeet Pal, Hupkens, Emeline, Jespers, Pascale, McEntee, Kathleen, Vachiery, Jean-Luc, Dewachter, Céline, and Dewachter, Laurence
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Heart failure with preserved ejection fraction (HFpEF) is a global cardiovascular challenge, constituting nearly 50% of prevalent heart failure cases worldwide. Renal dysfunction is common in HFpEF and is linked to higher mortality. The interplay between HFpEF and chronic kidney disease, potentially through a bidirectional causative relationship, remains poorly understood. In our study, we explored renal abnormalities over time in an experimental rat model of HFpEF with multiple comorbidities. Obesity-prone (OP) and–resistant (OR) rats were fed a high fat diet (HFD) or a standard rat chow for 4 or 12 months (n= 10 rats/group). They underwent evaluation through echocardiography, cardiac catheterization, and renal histological analyses. After 12 months of HFD, OP rats developed HFpEF, featuring LV diastolic dysfunction, concentric LV hypertrophy, and fibrosis, while maintaining preserved LV ejection fraction—absent in the 4-month HFD group. HFpEF rats exhibited increased serum cystatin C levels and elevated renal expression of kidney injury molecule (KIM)-1, indicating renal dysfunction. Histological analysis revealed glomerular enlargement, sclerosis, and inflammatory infiltrates in 4-month HFD fed OP rats, intensified in HFpEF rats. Increased renal expression of inflammatory markers, adhesion molecules, and macrophage-specific marker CD68 was observed. Pro-inflammatory cytokines and indicators of renal apoptosis and sustained fibrosis were heightened in HFpEF rats, demonstrating matrix component upregulation and increased expression of pro-fibrotic factors. Our findings showed renal pathological alterations preceding HFpEF diagnosis in our experimental rat model, pointing out the intricate relationship between HFpEF and renal dysfunction., info:eu-repo/semantics/published
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- 2023
8. Body condition score and triglyceride concentrations and their associations with other markers of energy homeostasis in healthy, non-obese dogs
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Gomez-Fernandez-Blanco, Carlos, primary, Peeters, Dominique, additional, Farnir, Frédéric, additional, Höglund, Katja, additional, Gouni, Vassiliki, additional, Wiberg, Maria, additional, Willesen, Jakob Lundgren, additional, Hanås, Sofia, additional, McEntee, Kathleen, additional, Tiret, Laurent, additional, Häggström, Jens, additional, Lohi, Hannes, additional, Chetboul, Valérie, additional, Fredholm, Merete, additional, Seppälä, Eija, additional, Lequarré, Anne-Sophie, additional, German, Alexander James, additional, and Merveille, Anne-Christine, additional
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- 2022
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9. Procollagen type III amino terminal propeptide concentrations in dogs with idiopathic pulmonary fibrosis compared with chronic bronchitis and eosinophilic bronchopneumopathy
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Heikkilä, Henna P., Krafft, Emilie, Jespers, Pascale, McEntee, Kathleen, Rajamäki, Minna M., and Clercx, Cecile
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- 2013
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10. Detection of soluble suppression of tumorigenicity 2 and N-terminal B-type natriuretic peptide in a rat model of aortic regurgitation: differential responses to omecamtiv mecarbil.
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El Oumeiri, Bachar Ghassan, Van De Borne, Philippe, Hubesch, Geraldine, Jespers, Pascale, Dewachter, Laurence, Stefanidis, Constantin, McEntee, Kathleen, Vanden Eynden, Frédéric, El Oumeiri, Bachar Ghassan, Van De Borne, Philippe, Hubesch, Geraldine, Jespers, Pascale, Dewachter, Laurence, Stefanidis, Constantin, McEntee, Kathleen, and Vanden Eynden, Frédéric
- Abstract
Both N-terminal fragment of B-type natriuretic peptide (NT-proBNP) and soluble isoform of ST2 (sST2) have been identified as biomarkers of heart failure. We evaluated the plasma levels of NT-proBNP and sST2 in a rat model of severe aortic valve regurgitation (AR) and correlated these findings with echocardiographic measurements. We also examined the impact of omecamtiv mecarbil (OM) on these parameters., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2022
11. Rheumatoid arthritis: human carbamylome and potential of autoantibodies targeting in vivo carbamylated proteins as diagnostic and prognostic biomarkers
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Rasschaert, Joanne, Gangji, Valérie, McEntee, Kathleen, Roufosse, Florence, Soyfoo, Muhammad Shahnawaz, Van Antwerpen, Pierre, Schett, Georg, Verschueren, Patrick C P M P., Sidiras, Paschalis, Rasschaert, Joanne, Gangji, Valérie, McEntee, Kathleen, Roufosse, Florence, Soyfoo, Muhammad Shahnawaz, Van Antwerpen, Pierre, Schett, Georg, Verschueren, Patrick C P M P., and Sidiras, Paschalis
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Rheumatoid arthritis (RA) is the most common systemic inflammatory arthritis, affecting close to 0.5% of the population. It is characterized by joint and systemic inflammation that are responsible for pain and increased morbidity and mortality if left untreated. Accurate diagnosis and timely treatment with anti-rheumatic drugs at an early stage can help prevent handicap. However, this is hindered by the fact that in roughly one third of RA patients, the commonly used diagnostic biomarkers, anti-citrullinated protein antibodies (ACPA) and rheumatoid factor (RF) are absent. Antibodies against carbamylated proteins (Anti-CarPA) have been suggested as a third diagnostic and prognostic biomarker in RA. The established method for anti-CarPA detection is based on the use of an in vitro carbamylated fetal calf serum (CaFCS) as an antigen for ELISA assays. Antibodies detected in that manner (anti-CaFCS) have been shown to be present in approximately 40% of sera from RA patients, including a small subset of patients seronegative for RF and ACPA. Anti-CaFCS positivity predates the development of RA and predict structural joint damage. In the present research work, we set out to evaluate the presence of anti-CaFCS in Belgian RA patients, as well as in rheumatic disease controls and healthy individuals (PUBLICATION I). We demonstrated that anti-CaFCS are present in our RA cohort, including in a seronegative patient subset (4.4%). In that last subgroup, we found that anti-CaFCS antibodies were associated with higher disease activity measures. We also observed increased anti-CaFCS levels in patients with Sjögren’s syndrome (pSS), as well as in the sera of certain Juvenile Idiopathic arthritis (JIA) patients. In JIA, the RF+ polyarticular subgroup showed the highest anti-CaFCS levels, and a proportion of otherwise seronegative patients was also detected (PUBLICATION II). We then designed an experiment to examine whether the inherent heterogeneity of FCS batches could have an impact, La polyarthrite rhumatoïde (PR) est l’arthrite inflammatoire systémique la plus fréquente, touchant environ 0.5% de la population. La maladie est caractérisée par une inflammation articulaire et systémique responsables de douleurs et d’une morbidité et une mortalité accrues chez les patients non traités. Un diagnostic précoce et précis permet le traitement rapide par des agents antirhumatismaux, aidant à prévenir le handicap. Chez un tiers de patients atteints de PR, les biomarqueurs diagnostiques utilisés à ce jour (i.e. les autoanticorps ciblant les protéines citrullinées (ACPA) et le facteur rhumatoïde (FR)) sont absents, ce qui rend le diagnostic plus difficile. Les autoanticorps dirigés contre les protéines carbamylées (anti-CarPA) ont été proposés comme troisième biomarqueur de pronostic et diagnostic pour la PR. La méthode établie pour la détection des anti-CarPA est fondée sur l’utilisation d’un sérum fœtal bovin carbamylé in vitro (CaFCS) comme antigène pour le test ELISA. Les anticorps détectés ainsi (anti-CaFCS) sont présents dans le sérum d’environ 40% de patients PR, incluant une fraction des patients séronégatifs pour le FR et les ACPA. La positivité anti-CaFCS précède le développement de la PR et pourrait être un marqueur prédictif de lésions articulaires structurales. Dans le présent travail de recherche, nous avons évalué la présence des anti-CaFCS chez des sujets belges atteints de PR ou d’une autre maladie rhumatismale et chez des sujets sains (PUBLICATION I). Nous avons démontré que les anti-CaFCS sont présents dans notre cohorte de PR, y compris dans un sous-groupe séronégatif (4.4%). Dans ce sous-groupe, nous avons remarqué une association entre la présence des anti-CaFCS et des scores d’activité de la maladie plus élevés. Nous avons également observé des taux d’anti-CarPA élevés dans le sérum de patients souffrant du syndrome de Sjögren primaire (pSS) et de certains patients atteints d’arthrite juvénile idiopathique (JIA). Parmi ces derniers, Doctorat en Sciences médicales (Médecine), info:eu-repo/semantics/nonPublished
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- 2022
12. Bioresorbable coronary scaffolds in the treatment of acute myocardial infarction.
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Unger, Philippe, Xaplanteris, Panagiotis, McEntee, Kathleen, Casado Arroyo, Ruben, Van De Borne, Philippe, Wauthy, Pierre, Kefer, Joelle, Varenne, Olivier, de Hemptinne, Quentin, Unger, Philippe, Xaplanteris, Panagiotis, McEntee, Kathleen, Casado Arroyo, Ruben, Van De Borne, Philippe, Wauthy, Pierre, Kefer, Joelle, Varenne, Olivier, and de Hemptinne, Quentin
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Bioresorbable coronary scaffolds (BRS) were developed to overcome limitation of current drug-eluting stents (DES). This thesis gathers clinical and laboratory research regarding BRS implantation in the treatment of acute myocardial infarction., Doctorat en Sciences médicales (Médecine), info:eu-repo/semantics/nonPublished
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- 2022
13. A Preclinical Rat Model of Heart Failure With Preserved Ejection Fraction With Multiple Comorbidities
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Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Chomette, Laura, Lasolle, Hélène, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Watu Malu Wembonyama, Cécile, Verhoeven, Caroline, Dewachter, Céline, Vachiery, Jean-Luc, McEntee, Kathleen, Dewachter, Laurence, Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Chomette, Laura, Lasolle, Hélène, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Watu Malu Wembonyama, Cécile, Verhoeven, Caroline, Dewachter, Céline, Vachiery, Jean-Luc, McEntee, Kathleen, and Dewachter, Laurence
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Heart failure with preserved ejection fraction (HFpEF) is a common complex clinical syndrome for which there are currently few evidence-based therapies. As patients with HFpEF very often present with comorbidities comprising the metabolic syndrome, we hypothesized, that metabolic syndrome could lead over time to the development of diastolic dysfunction and HFpEF. Obesity-prone rats were exposed to high-fat diet and compared to obesity-resistant rats fed with standard chow. Phenotyping of metabolic syndrome, associated with echocardiographic and cardiac hemodynamic measurements, was performed after 4 and 12 months. Blood and myocardial tissue sampling were performed for pathobiological evaluation. High-fat diet in obesity-prone rats elicited metabolic syndrome, characterized by increased body and abdominal fat weights, glucose intolerance and hyperlipidemia, as well as increased left ventricular (LV) systolic pressure (after 12 months). This was associated with LV diastolic dysfunction (assessed by increased LV end-diastolic pressure) and pulmonary hypertension (assessed by increased right ventricular systolic pressure). Echocardiography revealed significant concentric LV hypertrophy, while LV ejection fraction was preserved. LV remodeling was associated with cardiomyocyte hypertrophy, as well as myocardial and perivascular fibrosis. Circulating levels of soluble ST2 (the interleukin-1 receptor-like) markedly increased in rats with HFpEF, while plasma NT-proBNP levels decreased. RNA-sequencing analysis identified clusters of genes implicated in fatty acid metabolism and calcium-dependent contraction as upregulated pathways in the myocardium of rats with HFpEF. High-fat diet during 12 months in obesity-prone rats led to the development of a relevant preclinical model of HFpEF with multiple comorbidities, suitable for investigating novel therapeutic interventions., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2022
14. Cell therapy with autologous bone marrow mononuclear stem cells is associated with superior cardiac recovery compared with use of nonmodified mesenchymal stem cells in a canine model of chronic myocardial infarction
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Mathieu, Myrielle, Bartunek, Jozef, El Oumeiri, Bachar, Touihri, Karim, Hadad, Ielham, Thoma, Philippe, Metens, Thierry, da Costa, Agnes Mendes, Mahmoudabady, Maryam, Egrise, Dominique, Blocklet, Didier, Mazouz, Naïma, Naeije, Robert, Heyndrickx, Guy, and McEntee, Kathleen
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- 2009
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15. Effects of hyperoxia and cardiovascular risk factors on myocardial ischaemia-reperfusion injury :a randomized, sham-controlled parallel study
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Acheampong, Angela, Melot, Christian, Benjelloun, Mariam, Cheval, Maxime, Reye, Florence, Delporte, Cédric, Van Antwerpen, Pierre, Franck, Thierry, McEntee, Kathleen, and Van De Borne, Philippe
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Cardiologie et circulation - Abstract
info:eu-repo/semantics/published
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- 2021
16. Activin-A, Transforming Growth Factor-β, and Myostatin Signaling Pathway in Experimental Dilated Cardiomyopathy
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Mahmoudabady, Maryam, Mathieu, Myrielle, Dewachter, Laurence, Hadad, Ielham, Ray, Lynn, Jespers, Pascale, Brimioulle, Serge, Naeije, Robert, and McEntee, Kathleen
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- 2008
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17. Obesity-prone rats fed with high fat diet as a model of HFpEF
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Printemps de la Cardiologie (27-28 mai 2021: France - 100% digital), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, McEntee, Kathleen, Dewachter, Laurence, Printemps de la Cardiologie (27-28 mai 2021: France - 100% digital), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, McEntee, Kathleen, and Dewachter, Laurence
- Abstract
info:eu-repo/semantics/published
- Published
- 2021
18. Utility of Computed Tomographic Angiography for Pulmonary Hypertension Assessment in a Cohort of West Highland White Terriers With or Without Canine Idiopathic Pulmonary Fibrosis.
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Soliveres, Eugénie, McEntee, Kathleen, Couvreur, Thierry, Fastrès, Aline, Roels, Elodie, Merveille, Anne-Christine, Tutunaru, Alexandru-Cosmin, Clercx, Cécile, Bolen, Géraldine, Soliveres, Eugénie, McEntee, Kathleen, Couvreur, Thierry, Fastrès, Aline, Roels, Elodie, Merveille, Anne-Christine, Tutunaru, Alexandru-Cosmin, Clercx, Cécile, and Bolen, Géraldine
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West Highland white terriers (WHWTs) affected with canine idiopathic pulmonary fibrosis (CIPF) are at risk of developing precapillary pulmonary hypertension (PH). In humans, thoracic computed tomography angiography (CTA) is commonly used to diagnose and monitor patients with lower airway diseases. In such patients, CTA helps to identify comorbidities, such as PH, that could negatively impact prognosis. Diameter of the pulmonary trunk (PT), pulmonary trunk-to-aorta ratio (PT/Ao), and right ventricle-to-left ventricle ratio (RV/LV) are CTA parameters commonly used to assess the presence of PH. Pulmonary vein-to-right pulmonary artery ratio (PV/PA) is a new echocardiographic parameter that can be used in dogs to diagnose PH. The primary aim of this study was to evaluate the use of various CTA parameters to diagnose PH. An additional aim was to evaluate the correlation of RV/LV measurements between different CTA planes. CTA and echocardiography were prospectively performed on a total of 47 WHWTs; 22 affected with CIPF and 25 presumed healthy control dogs. Dogs were considered to have PH if pulmonary vein-to-right pulmonary artery ratio (PV/PA) measured on 2D-mode echocardiography was less than to 0.7. WHWTs affected with CIPF had higher PT/Ao compared with control patients. In WHWTs affected with CIPF, PT size was larger in dogs with PH (15.4 mm) compared with dogs without PH (13 mm, p = 0.003). A cutoff value of 13.8 mm predicted PH in WHWTs affected with CIPF with a sensitivity of 90% and a specificity of 87% (AUC = 0.93). High correlations were observed between the different CTA planes of RV/LV. Results suggest that diameter of the PT measured by CTA can be used to diagnose PH in WHWTs with CIPF., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2021
19. Involvement of aquaporin-5-interacting protein partners and hyperosmolarity in the physiopathology of Sjögren’s syndrome
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Delporte, Christine, Soyfoo, Muhammad Shahnawaz, McEntee, Kathleen, Pirson, Isabelle, Goriely, Stanislas, Springael, Jean-Yves, Lories, Rik, Nocturne, Gaetane, Chivasso, Clara, Delporte, Christine, Soyfoo, Muhammad Shahnawaz, McEntee, Kathleen, Pirson, Isabelle, Goriely, Stanislas, Springael, Jean-Yves, Lories, Rik, Nocturne, Gaetane, and Chivasso, Clara
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Le syndrome de Sjögren (SS) est une maladie auto-immune chronique touchant les glandes exocrines et en particulier les glandes salivaires (SG) et lacrymales (LG) et engendrant un syndrome sec (SICCA). Il a été observé que les symptômes secs pourraient être la conséquence d’un processus complexe dans lequel les cellules lymphocytaires infiltrent les SG qui sont soumises à une stimulation inflammatoire qui entraîne une destruction épithéliale. La sécrétion salivaire est dépendante de la translocation intracellulaire de l’aquaporine 5 (AQP5) depuis des vésicules intracellulaires vers la membrane apicale des cellules acinaires. Les SG de patients atteints du SS présentent une localisation aberrante de l’AQP5 qui se localise dans la région basolatérale des cellules plutôt qu’apicale. Sur base de l’importance des interactions protéine-protéine dans les mécanismes de translocation des protéines, nous avons étudié l'implication des partenaires protéiques de l’AQP5 dans son trafic altéré vers la membrane apicale. Le rôle des protéines Prolactine Inducible Protein (PIP) et Ezrin a été étudié en mettant en évidence la base moléculaire des interactions et leur implication dans le trafic et localisation de l’AQP5 dans les SG. Nos données montrent que l'interaction AQP5-PIP et AQP5-Ezrin est présente dans les SG humaine et de souris et qu’elle apparaît altérée chez les patients SS. L’ensemble de nos résultats suggère que le trafic et la localisation aberrante de l’AQP5 pourraient dépendre d'un complexe composé par plusieurs protéines comprenant PIP et Ezrin. La localisation altérée de l'AQP5 dans les acini des SG de patients atteints du SS et l'apoptose des cellules acineuses pourraient induire une accumulation de NaCl dans la lumière de la glande qui ne serait pas suivie d'un flux d'eau au travers l’AQP5. Ainsi, la génération d'un environnement hyperosmolaire pourrait soumettre les cellules acinaires à un stress hyperosmolaire chronique (HOS) qui aboutirait à une réponse inflamm, Sjögren’s syndrome (SS) is a chronic autoimmune disease affecting exocrine glands such as lacrimal and salivary glands. The most common hallmarks characterizing salivary glands (SGs) are altered SGs architecture, lymphocytic infiltration, and sicca symptoms. It has been postulated that sicca symptoms observed in SS patients could be due to a double step process whereby lymphocyte cells infiltrate the SG which is subjected to inflammatory stimulus and results in epithelial destruction. Recent studies have also observed that Aquaporin-5 (AQP5), a principal player of saliva formation, could be involved in SS SGs altered function. The circulating anti-AQP5 antibodies in sera of SS patients and the altered trafficking of AQP5 could explain the mechanistic process underlying SS SGs dryness. In the present work, we investigate the involvement of AQP5 protein partners in its altered trafficking to the apical membrane of acinar cells. The role of Prolactin-inducible protein (PIP) and Ezrin was studied highlighting the molecular basis of the interactions and their involvement in AQP5 trafficking and localization in SGs. Our data show that, in physiological condition, one molecule of PIP interacts with a AQP5 tetramer. In PIP knockout mice SGs, the absence of PIP is associated with a mislocalization of AQP5 suggesting its role in AQP5 proper trafficking. AQP5-PIP interaction appears altered in SS patients, where PIP is much less expressed compared to the control patients and the localization is basal instead of apical. In the same way, the study of Ezrin as a AQP5 interacting protein allowed us to identify its involvement in AQP5 trafficking. Interestingly, in SS patients, Ezrin and AQP5 interactions were reduced and mislocalized. All together, these results suggest that AQP5 altered trafficking and localization could be dependent on a complex composed by several proteins comprising PIP and Ezrin. In addition, the altered AQP5 localization in SS acini of SGs and the acinar cel, Doctorat en Sciences biomédicales et pharmaceutiques (Médecine), info:eu-repo/semantics/nonPublished
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- 2021
20. Deciphering the contribution of chemerin signaling in the homeostasis of the pulmonary circulation
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McEntee, Kathleen, Dewachter, Laurence, Langer, Ingrid, Communi, Didier, Antoine, Marie-Hélène, Remmelink, Myriam, Beauloye, Christophe, Perros, Frédéric, Hanthazi, Alienor, McEntee, Kathleen, Dewachter, Laurence, Langer, Ingrid, Communi, Didier, Antoine, Marie-Hélène, Remmelink, Myriam, Beauloye, Christophe, Perros, Frédéric, and Hanthazi, Alienor
- Abstract
La chémérine est une adipokine, initialement décrite comme jouant des rôles centraux dans la régulation de l’adipogenèse, du métabolisme énergétique et de la réponse immunitaire. Plus récemment, elle a été incriminée dans le contrôle de la pression systémique, agissant sur le tonus et le remodelage des artères systémiques. La chémérine interagit avec les cellules en se fixant sur trois récepteurs, le CMKLR1 (chemokine like receptor 1), GPR1 (G protein- coupled receptor 1) et CCRL2 (C-C chemokine receptor-like 2). Le CMKLR1, est le récepteur principalement associé à la signalisation de la chémérine, et a été identifié sur plusieurs types cellulaires (tels que cellules endothéliales et musculaires lisses vasculaires, cellules inflammatoires) jouant des rôles-clés dans la pathogénèse de l’hypertension artérielle pulmonaire. Le but du présent travail était d’évaluer les effets de la chémérine sur la circulation pulmonaire, ainsi que dans le développement de l'hypertension pulmonaire.Nous avons d’abord étudié les effets de la chémérine sur la réactivité artérielle pulmonaire ex vivo et sur les mécanismes impliqués dans le remodelage artériel pulmonaire, plus particulièrement la prolifération, l’apoptose et la migration des cellules musculaires lisses artérielles pulmonaires in vitro. Ces mécanismes jouent des rôles centraux dans la pathogenèse de l'hypertension artérielle pulmonaire. La réponse des artères pulmonaires a été comparée à celle de l’aorte thoracique. L'expression de la chémérine et de ses 3 récepteurs, évaluée par real-time quantitative polymerase chain reaction (RTq-PCR), a été mis en évidence au sein de l'artère pulmonaire et de l'aorte thoracique, ainsi que dans des cultures primaires de cellules musculaires lisses artérielles pulmonaires isolées à partir de rats Wistar. L’expression de CMKLR1 était plus élevée par rapport à celles de CCRL2 et GPR1 et le CMKLR1 était exprimé en plus grande quantité dans l’artère pulmonaire que dans l’aorte thoracique. La, Doctorat en Sciences biomédicales et pharmaceutiques (Médecine), info:eu-repo/semantics/nonPublished
- Published
- 2021
21. Obese prone rats fed with high fat diet as a model of HFpEF
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Belgian Society of Cardiology (40: 2021-02-11: Brussels, Belgium), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, McEntee, Kathleen, Dewachter, Laurence, Belgian Society of Cardiology (40: 2021-02-11: Brussels, Belgium), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, McEntee, Kathleen, and Dewachter, Laurence
- Abstract
info:eu-repo/semantics/published
- Published
- 2021
22. Suivi clinique, hématologique et identification de la fréquence des indications d’un traitement par hydroxyurée chez les patients drépanocytaires dans une ville reculée d’un pays à faibles ressources
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Gulbis, Béatrice, McEntee, Kathleen, Demulder, Anne, Coppieters, Yves, Meuleman, Nathalie, Galacteros, Frédéric, De Wilde, Bram, Mbiya Mukinayi, Benoît, Gulbis, Béatrice, McEntee, Kathleen, Demulder, Anne, Coppieters, Yves, Meuleman, Nathalie, Galacteros, Frédéric, De Wilde, Bram, and Mbiya Mukinayi, Benoît
- Abstract
Contexte La drépanocytose est un problème de santé publique en République Démocratique du Congo (RDC), mais elle est encore mal connue par les familles concernées et pas suffisamment par les professionnels de santé. L’utilisation de l’hydroxyurée dans sa prise en charge est rare malgré son efficacité prouvée. Les centres de référence de la drépanocytose sont basés dans les grandes villes et capitales, n’existent presque pas dans les zones reculées pour les familles ayant de très faibles sources de revenus. Les objectifs de cette étude sont 1) d’évaluer le niveau de connaissance et les comportements de familles concernées ainsi que l’impact de cette maladie dans leur quotidien, 2) d’évaluer les connaissances et les pratiques des médecins congolais vis-à-vis de la drépanocytose, 3) de démontrer la faisabilité et l’accessibilité d’un suivi médical standardisé et régulier des enfants atteints de drépanocytose sur la base de la création d’un centre de référence dans une ville reculée de la RDC, et 4) d’établir la disponibilité et le coût moyen de l’hydroxyurée en RDC. Ces deux derniers aspects permettront d’envisager l’introduction de l’hydroxyurée dans l’arsenal thérapeutique des malades.Méthode À Mbujimayi, une ville reculée au Centre-Est en RDC, ont été réalisées des études de type transversal descriptif à l’aide de questionnaires à choix multiples ou à réponses ouvertes, et de type prospectif par un suivi médical d’une cohorte de 143 enfants atteints de drépanocytose. Le suivi médical consistait en une période de 12 mois sans intervention médicale spécifique en dehors de la gestion des événements aigus, suivi d’une seconde période de 12 mois avec une visite médicale mensuelle, un suivi biologique et une prophylaxie régulière. Résultats Les enquêtes menées sur le terrain pendant une période allant de 2015 à 2018 ont montré que chaque premier enfant drépanocytaire faisait en moyenne annuellement trois crises douloureuses, 4 épisodes de fièvre, recevait deux transfusion, Doctorat en Sciences médicales (Médecine), info:eu-repo/semantics/nonPublished
- Published
- 2021
23. Obesity-prone rats fed with high fat diet as a model of HFpEF
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Belgian Working Group Basic Research in Cardiology (BWGBRC) (2021-06-09: Belgium), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, McEntee, Kathleen, Dewachter, Laurence, Belgian Working Group Basic Research in Cardiology (BWGBRC) (2021-06-09: Belgium), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, McEntee, Kathleen, and Dewachter, Laurence
- Abstract
info:eu-repo/semantics/published
- Published
- 2021
24. Pretreatment of adult bone marrow mesenchymal stem cells with cardiomyogenic growth factors and repair of the chronically infarcted myocardium
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Bartunek, Jozef, Croissant, Jeffrey D., Wijns, William, Gofflot, Stephanie, de Lavareille, Aurore, Vanderheyden, Marc, Kaluzhny, Yulia, Mazouz, Naima, Willemsen, Philippe, Penicka, Martin, Mathieu, Myrielle, Homsy, Christian, De Bruyne, Bernard, McEntee, Kathleen, Lee, Ike W., and Heyndrickx, Guy R.
- Subjects
Hematopoietic stem cells -- Research ,Heart attack -- Research ,Biological sciences - Abstract
The in vivo cardiac differentiation and functional effects of unmodified adult bone marrow mesenchymal stem cells (MSCs) after myocardial infarction (MI) is controversial. We postulated that ex vivo pretreatment of autologous MSCs using cardiomyogenic growth factors will lead to cardiomyogenic specification and will result in superior biological and functional effects on cardiac regeneration of chronically infarcted myocardium. We used a chronic dog MI model generated by ligation of the coronary artery (n = 30). Autologous dog bone marrow MSCs were isolated, culture expanded, and specified into a cardiac lineage by adding growth factors, including basic FGF, IGF-1, and bone morphogenetic protein-2. Dogs underwent cell injection >8 wk after the infarction and were randomized into two groups. Group A dogs (n = 20) received MSCs specified with growth factors (147 [+ or -] 96 x [10.sup.6]), and group B (n = 10) received unmodified MSCs (168 [+ or -] 24 x [10.sup.6]). After the growth factor treatment, MSCs stained positive for the early muscle and cardiac markers desmin, antimyocyte enhancer factor-2, and Nkx2-5. In group A dogs, prespecified MSCs colocalized with troponin I and cardiac myosin. At 12 wk, group A dogs showed a significantly larger increase in regional wall thickening of the infarcted territory (from 22 [+ or -] 8 to 32 [+ or -] 6% in group A; P < 0.05 vs. baseline and group B, and from 19 [+ or -] 7 to 21 [+ or -] 7% in group B, respectively) and a decrease in the wall motion score index (from 1.60 [+ or -] 0.05 to 1.35 [+ or -] 0.03 in group A; P < 0.05 vs. baseline and group B, and from 1.58 [+ or -] 0.07 vs. 1.56 [+ or -] 0.08 in group B, respectively). The biological ex vivo cardiomyogenic specification of adult MSCs before their transplantation is feasible and appears to improve their in vivo cardiac differentiation as well as the functional recovery in a dog model of the chronically infarcted myocardium. cardiac repair; myogenesis; chronic myocardial infarction; heart failure
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- 2007
25. Endothelin receptor antagonists
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Motte, Sophie, McEntee, Kathleen, and Naeije, Robert
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- 2006
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26. Cardiac Power Output during Dobutamine Stress Test in Horses
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Sandersen, Charlotte, McEntee, Kathleen, Deleuze, Stefan, Detilleux, Johanne, and Amory, Hélène
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- 2009
27. Contribution à l'étude du contrôle chémoréflexe des variables ventilatoires et cardiovasculaires chez le sujet sain et pathologique
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Van De Borne, Philippe, McEntee, Kathleen, Dewachter, Céline, Ninane, Vincent, Van Der Linden, Philippe, Gurné, Olivier, Senard, Jean-Michel, Janssen, Christophe, Van De Borne, Philippe, McEntee, Kathleen, Dewachter, Céline, Ninane, Vincent, Van Der Linden, Philippe, Gurné, Olivier, Senard, Jean-Michel, and Janssen, Christophe
- Abstract
Le chémoréflexe périphérique est une des boucles réflexe contrôlant le système nerveux autonome et, de ce fait, impliquée dans le contrôle des variables respiratoires et hémodynamiques. Le système nerveux autonome présente deux parties :le système nerveux parasympathique et orthosympathique. L’activation du système nerveux orthosympathique entraine une élévation de la pression artérielle, une accélération du rythme cardiaque ainsi qu’une vasoconstriction des vaisseaux périphériques. Les chémorécepteurs périphériques détectent notamment des changements de la pression partielle en oxygène dans le sang mais sont également sensibles à de nombreuses drogues en raison de leur richesse en récepteurs. Les chémorécepteurs jouent un rôle dans la régulation de la ventilation à l’effort mais leur implication exacte reste obscure à ce jour. C’est pourquoi nous avons étudié l’implication de la boucle chémoréflexe périphérique dans la régulation de la ventilation à l’effort chez le sujet sain, en modulant sa sensibilité par l’administration de dopamine (diminution de la sensibilité des chémorécepteurs) et de digoxine (augmentation de la sensibilité des chémorécepteurs). En outre, une dysfonction du système nerveux orthosympathique et de la boucle chémoréflexe périphérique a été documentée dans de nombreuses affections dont le syndrome d’apnée du sommeil. Les patients apnéiques du sommeil présentent une sensibilité accrue des chémorécepteurs périphériques et un taux plasmatique élevé d’ET. Nous avons tenté d’éclaircir le lien entre les deux. Les principales observations qui ressortent de nos études sont :1. Une réduction ou augmentation de la sensibilité des chémorécepteurs périphériques entraine respectivement une diminution ou une augmentation de la réponse ventilatoire à l’effort sans altérer les capacités aérobies chez le sujet sain. 2. La contribution des chémorécepteurs périphériques dans le contrôle de la réponse ventilatoire à l’effort reste modeste. 3. L’endothéline contri, Doctorat en Sciences médicales (Médecine), info:eu-repo/semantics/nonPublished
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- 2020
28. Spermatogenesis and steroidogenesis disruption in a model of metabolic syndrome rats
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Rahali, Dalila, Dallagi, Yosra, Hupkens, Emeline, Vegh, Grégory, McEntee, Kathleen, Asmi, Monia El, El Fazaa, Saloua, El Golli, Narges, Rahali, Dalila, Dallagi, Yosra, Hupkens, Emeline, Vegh, Grégory, McEntee, Kathleen, Asmi, Monia El, El Fazaa, Saloua, and El Golli, Narges
- Abstract
info:eu-repo/semantics/published
- Published
- 2020
29. Development and assessment of new technology for variceal bleeding
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Devière, Jacques, Arvanitakis, Marianna, McEntee, Kathleen, Creteur, Jacques, Donckier De Donceel, Vincent, Serste, Thomas, Laleman, Wim, Louvet, Alexandre, Ibrahim, Mostafa, Devière, Jacques, Arvanitakis, Marianna, McEntee, Kathleen, Creteur, Jacques, Donckier De Donceel, Vincent, Serste, Thomas, Laleman, Wim, Louvet, Alexandre, and Ibrahim, Mostafa
- Abstract
Acute variceal bleeding (AVB) is the most dramatic complication of portalhypertension. It occurs in one-third of cirrhotic patients with varices and causes70% of all upper gastrointestinal (GI) bleeding episodes in cirrhotic patientsresulting in major morbidity and mortality despite improvements in primaryprophylaxis and management of acute bleeding episodes over the past threedecades. The best strategies for management of AVB have been investigated innumerous clinical trials and this has led to multiple guidelines. Endoscopicmanagement combined with pharmacotherapy is the ideal strategy to controlvariceal bleeding, but this can be challenging. Bleeding may be difficult to identifyor may occur from sites that are difficult to approach. A trained multidisciplinaryteam consisting of endoscopists, hepatologists, and specialized nurses as well asinterventional radiologists is required to administer the ideal treatment for AVB.However, this setup is not available everywhere. Early management of AVB ismandatory within 24 hours of admission and better outcomes are reported in thosepatients who receive endoscopic therapy within 12 hours. Although this is stillcontroversial, it seems to be increasingly obvious that earlier hemostasis leads tobetter outcomes.In practice, treatment for AVB is often delayed by a lack of expert endoscopists.Therefore, having a simple endoscopic hemostatic technique that does not requirean experienced team could have a major impact on AVB management.Hemospray powder (Hemospray, TC-325; Cook Medical Inc. Winston-Salem, NC,USA) is an FDA-approved organic powder made from a proprietary mineral blend.The material works in two different ways: as a mechanical barrier and byabsorption. When in contact with the bleeding site, the powder forms a barrier over6the vessel wall, quickly stopping the bleeding. In addition, the absorbent powderincreases the local concentration of clotting factors and enhances clot formation.Previous studies described Hemospray, Doctorat en Sciences biomédicales et pharmaceutiques (Médecine), info:eu-repo/semantics/nonPublished
- Published
- 2020
30. Chemerin Added to Endothelin-1 Promotes Rat Pulmonary Artery Smooth Muscle Cell Proliferation and Migration.
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Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Dubois, Christine, Hubesch, Geraldine, Springael, Jean-Yves, Dewachter, Laurence, McEntee, Kathleen, Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Dubois, Christine, Hubesch, Geraldine, Springael, Jean-Yves, Dewachter, Laurence, and McEntee, Kathleen
- Abstract
While chemerin has been shown to increase proliferation and migration of systemic vascular smooth muscle cells (SMCs) contributing therefore to the development of hypertension, this remains to be clarified for the pulmonary circulation., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2020
31. P2Y2 nucleotide receptor is a regulator of cardiac adipose tissue and its fat-associated lymphoid clusters at basal state and after myocardial infarction
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Communi, Didier, McEntee, Kathleen, Oury, Cecile, Bertrand, Luc, Dewachter, Laurence, Van De Borne, Philippe, Willems, Fabienne, Negri, Irene, Communi, Didier, McEntee, Kathleen, Oury, Cecile, Bertrand, Luc, Dewachter, Laurence, Van De Borne, Philippe, Willems, Fabienne, and Negri, Irene
- Abstract
The research of new therapeutic strategies for cardiovascular diseases has seen in the last 15 years the introduction of a new participant: pericardial adipose tissue (PAT). This tissue is able to modulate cardiac function and its volume was sometimes linked to risk of cardiovascular diseases. Moreover, adipose-derived stem cells (ASCs) isolated from PAT are considered as the best suitable for new regenerative strategies aiming at healing ischemic myocardium. Although the interests in understanding the functions and the formation of pericardial adipose tissue are high, the current knowledge on this tissue is still scarce. In this work, the starting point was the consideration that nucleotide receptors are established regulators of many biological functions, including the differentiation of adult mesenchymal stem cells, immunity and inflammatory process. The P2Y4 receptor has been recently recognized as a negative regulator of cardiac fat formation and ASCs differentiation. The purpose of this thesis was to analyze the involvement of the nucleotide receptor P2Y2 in the formation of pericardial adipose tissue (PAT) and its ASCs differentiation. We also investigated the possible contribution of this receptor to the functions of recently discovered fat-associated lymphoid clusters (FALCs). Our study analyzed the PAT of mice deficient for P2Y2 at basal conditions and in a model of myocardial infarction. P2Y2-null mice showed a lower mass of PAT compared to WT, which was correlated with decreased adipogenic differentiation and maturation potential of pericardial ASCs in vitro. PAT of basal P2Y2-deficient mice displayed a reduced density of FALCs due to a reduced number of B cells. RNA-sequencing experiments identified many P2Y2 target genes in PAT linked to immunomodulation. We identified a polarization of FALCs macrophages towards anti-inflammatory M2c subtype in P2Y2-null mice. We correlated it with a decreased number of follicular helper T cells, known to contribute to, Durant les 15 dernières années, un nouvel arrivant a fait son apparition dans la recherche de nouvelles approches thérapeutiques dans le domaine cardiovasculaire: le tissu adipeux cardiaque. Ce tissu est capable de moduler les fonctions cardiaques et son volume a pu être associé parfois à un risque de maladie cardiovasculaire. De plus, les cellules souches dérivées du tissu adipeux (ASCs) cardiaque sont considérées comme les mieux appropriées pour des stratégies thérapeutiques visant la réparation du myocarde ischémié. Bien que la compréhension de la fonction et de la formation du tissu adipeux cardiaque présente un intérêt majeur, la connaissance actuelle de ce tissu particulier est encore assez limitée. Pour le présent travail, le point de départ a été l’observation que les récepteurs nucléotidiques sont des régulateurs établis de nombreuses fonctions biologiques, incluant la différentiation des cellules souches mésenchymateuses et plus généralement la régulation de la réponse immune et inflammatoire. Le récepteur P2Y4 a été récemment reconnu comme un régulateur négatif de la formation du tissu adipeux cardiaque et de la différentiation des ASCs. Le but de cette thèse a été l’étude de l’implication du récepteur nucléotidiques P2Y2 dans la formation du tissu adipeux péricardique (TAP) et la différentiation des ASCs. Nous avons également investigué la contribution possible de ce récepteur dans la fonction des structures leucocytaires associées au tissu adipeux appelées FALCS pour fat-associated lymphoid clusters.Nous avons étudié le TAP de souris déficientes pour le récepteur P2Y2 à l’état de base et dans un modèle d’infarctus du myocarde. Les souris P2Y2 knock-out (KO) présentent une masse réduite du TAP corrélée avec le fait que l’absence du P2Y2 diminue la différentiation adipogénique et le potentiel de maturation des ASCs péricardiques in vitro. Le PAT des souris P2Y2 KO présentent une diminution de la densité de FALCs à l’état de base, principalement due à un n, Doctorat en Sciences biomédicales et pharmaceutiques (Médecine), info:eu-repo/semantics/nonPublished
- Published
- 2020
32. Biomechanics of the wrist applied to Kienböck’s disease. Description and Evaluation of a new radial so-called “Camembert osteotomy” compared with current osteotomies.
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Schuind, Frederic, Feipel, Véronique, McEntee, Kathleen, Sadeghi-Meibodi, Niloufar, Illes, Tamas, Soyfoo, Muhammad Shahnawaz, De Smet, Luc, Fontaine, Christian, Camus, Emmanuel, Schuind, Frederic, Feipel, Véronique, McEntee, Kathleen, Sadeghi-Meibodi, Niloufar, Illes, Tamas, Soyfoo, Muhammad Shahnawaz, De Smet, Luc, Fontaine, Christian, and Camus, Emmanuel
- Abstract
La maladie de Kienböck fragilise le lunatum, qui souvent évolue vers la fracture et le collapsus. Divers facteurs ont été évoqués pour en expliquer l’origine, principalement anatomiques, comme l’index radio-ulnaire distal négatif, la structure trabéculaire du lunatum ou la pente de la glène radiale. Le carpe est soumis à des forces de compression qui tendent à le disloquer ou à l’écraser. Cette compression transmise par les métacarpiens se concentre dans le carpe vers l’espace radio-scapho-lunaire.La prise en charge chirurgicale la plus courante de la maladie de Kienböck avant le collapsus arthrosique est la décompression du lunatum par raccourcissement osseux de voisinage. Si l'ostéotomie transversale de raccourcissement du radius est la plus répandue, d’autres ostéotomies ont été proposées: l'ostéotomie de soustraction externe du radius, de soustraction interne du radius, d’accourcissement du capitatum, parfois étendue à l’hamatum. Ces différentes ostéotomies ayant un résultat différent sur l’anatomie, on peut supposer un effet de décompression variable sur le lunatum.Notre point de vue est que pour éviter la fracture du lunatum, il faut le soustraire durablement aux contraintes, en les déviant vers le scaphoïde ou le triquetrum. L’espace radio-scaphoïdien paraît moins à risque de conflit par hyperpression que l’espace ulno-carpien. Notre hypothèse est que pour dévier les contraintes vers le scaphoïde, il ne faut pas que le raccourcissement concerne la colonne externe du carpe, et l’espace radio-scaphoïdien. Nous avons envisagé de planifier une ostéotomie du radius pour ne pas décomprimer le scaphoïde. L’ostéotomie “Camembert” consiste à réséquer un coin osseux délimité entre le bord ulnaire du radius et le centre de la glène radiale.La technique est réalisée par voie dorsale, avec une résection contrôlée sous ampli, et une ostéosynthèse par une agrafe. Les résultats sont rapportés sur une série de 11 poignets opérés à sept ans de recul. Ils sont excellents et bon, Kienböck's disease weakens the lunate, which often evolves to fracture and collapse. Various factors, mainly anatomical, have been suggested to explain its origin, such as the negative distal radioulnar index, the trabecular structure of the lunate or the slope of the radial glenoid. The carpus is subjected to compressive loads that tend to dislocate or collapse it. This load transmitted by the metacarpals is concentrated through the carpus towards the radio-scapho-lunate space.The most common surgical management of Kienböck's disease prior to osteoarthritic collapse is decompression of the lunate by neighbourhood bone shortening. While transverse osteotomy for radius shortening is the most common, other osteotomies have been proposed: lateral radius shortening osteotomy, medial radius shortening osteotomy, capitate shortening, sometimes extended to the hamate. As these different osteotomies have a different result on the anatomy, a variable unloading effect of the lunate can be assumed.Our point of view is that to avoid a lunate fracture, it must be durably relieved from stresses by diverting it towards the scaphoid or the triquetrum. The radio-scaphoid space seems less at risk of hyperpressure than the ulno-carpal space. Our hypothesis is that to deviate the stresses towards the scaphoid, the shortening must involve neither the external column of the carpus, nor the radius facing the scaphoid. The "Camembert" osteotomy consists in resecting a bone wedge delimited between the ulnar edge of the radius and the centre of the radial glenoid.The technique is performed dorsally, with controlled bone resection under fluoroscopy. Osteosynthesis is completed with a staple. The results are reported on a series of 11 wrists with seven years follow-up. They are excellent and good in 8 cases, correct in 2 cases, and bad once.We conducted a biomechanical finite element analysis comparing the decompression of the lunate following different osteotomies. Some osteotomies may result, Doctorat en Sciences médicales (Médecine), info:eu-repo/semantics/nonPublished
- Published
- 2020
33. High fat diet altered cardiac metabolic gene profile in Psammomys obesus gerbils.
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Sahraoui, Abdelhamid, Dewachter, Céline, Vegh, Grégory, McEntee, Kathleen, Naeije, Robert, Bouguerra, Souhila Aouichat, Dewachter, Laurence, Sahraoui, Abdelhamid, Dewachter, Céline, Vegh, Grégory, McEntee, Kathleen, Naeije, Robert, Bouguerra, Souhila Aouichat, and Dewachter, Laurence
- Abstract
In metabolic disorders, myocardial fatty infiltration is critically associated with lipotoxic cardiomyopathy., SCOPUS: ar.j, info:eu-repo/semantics/published
- Published
- 2020
34. Activation of Smad2/3 signaling by low fluid shear stress mediates artery inward remodeling.
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Hanqiang Deng, Min, Elizabeth, Baeyens, Nicolas, Coon, Brian G., Rui Hu, Zhuang, Zhen W., Minghao Chen, Huang, Billy, Afolabi, Titilayo, Zarkada, Georgia, Acheampong, Angela, McEntee, Kathleen, Eichmann, Anne, Fang Liu, Bing Su, Simons, Michael, and Schwartz, Martin A.
- Subjects
SHEARING force ,BONE morphogenetic proteins ,TRANSFORMING growth factors ,MEMBRANE proteins ,BLOOD flow - Abstract
Endothelial cell (EC) sensing of wall fluid shear stress (FSS) from blood flow governs vessel remodeling to maintain FSS at a specific magnitude or set point in healthy vessels. Low FSS triggers inward remodeling to restore normal FSS but the regulatory mechanisms are unknown. In this paper, we describe the signaling network that governs inward artery remodeling. FSS induces Smad2/3 phosphorylation through the type I transforming growth factor (TGF)-β family receptor Alk5 and the transmembrane protein Neuropilin-1, which together increase sensitivity to circulating bone morphogenetic protein (BMP)-9. Smad2/3 nuclear translocation and target gene expression but not phosphorylation are maximal at low FSS and suppressed at physiological high shear. Reducing flow by carotid ligation in rodents increases Smad2/3 nuclear localization, while the resultant inward remodeling is blocked by the EC-specific deletion of Alk5. The flow-activated MEKK3/Klf2 pathway mediates the suppression of Smad2/3 nuclear translocation at high FSS, mainly through the cyclin-dependent kinase (CDK)-2-dependent phosphosphorylation of the Smad linker region. Thus, low FSS activates Smad2/3, while higher FSS blocks nuclear translocation to induce inward artery remodeling, specifically at low FSS. These results are likely relevant to inward remodeling in atherosclerotic vessels, in which Smad2/3 is activated through TGF-ß signaling. [ABSTRACT FROM AUTHOR]
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- 2021
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35. Activation of Smad 2/3 signaling by low shear stress mediates artery inward remodeling
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Min, Elizabeth, primary, Baeyens, Nicolas, additional, Hu, Rui, additional, Zhuang, Zhenwu, additional, Chen, Minghao, additional, Huang, Billy, additional, Zarkada, Georgia, additional, Acheampong, Angela, additional, McEntee, Kathleen, additional, Simons, Michael, additional, Eichmann, Anne, additional, and Schwartz, Martin A., additional
- Published
- 2019
- Full Text
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36. Seven Years of ACTS Technology Verification Experiments Reviewed
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Acosta, Roberto J, Johnson, Sandra K, McEntee, Kathleen M, Gauntner, William, and Feliciano, Walber
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Communications And Radar - Abstract
The Advanced Communications Technology Satellite (ACTS) was designed to achieve a 99.5-percent system availability rate and signals with less than one error in 10(exp 7) bits throughout the continental United States. To accomplish such a high rate of system availability, ACTS uses multiple narrow hopping beams and very small aperture terminal (VSAT) technology. In addition, ACTS uses an adaptive rain fade compensation protocol to reduce the negative effects of propagation on the system. To enhance knowledge on how propagation and system variances affect system availability, researchers at the NASA Glenn Research Center at Lewis Field performed technology verification experiments over a 7-yr period (from September 1993 to the present). These experiments include T1VSAT System Availability, Statistical Rain Fade Compensation Characterization, Statistical Characterization of Ka-Band Propagation Effects on Communication Link Performance, and Multibeam Antenna Performance.
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- 2000
37. Etude du biais de signalisation chez les récepteurs aux chimiokines
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Springael, Jean-Yves, McEntee, Kathleen, Communi, Didier, Delporte, Christine, Svoboda, Michal, Govaerts, Cédric, Enslen, Hervé, Hanson, Julien HJ, Corbisier, Jenny, Springael, Jean-Yves, McEntee, Kathleen, Communi, Didier, Delporte, Christine, Svoboda, Michal, Govaerts, Cédric, Enslen, Hervé, Hanson, Julien HJ, and Corbisier, Jenny
- Abstract
Les récepteurs 7TMs, également appelés récepteurs couplés aux protéines G, forment une superfamille de récepteurs transmembranaires avec plus de 800 membres identifiés. La découverte que d’autres protéines, notamment les β-arrestines, que les protéines Gα puissent activer des voies de signalisation associés aux récepteurs 7TMs a permis de définir un nouveau paradigme, le biais de signalisation, qui stipule qu’un récepteur peut adopter de multiples états conformationnels et qu’un ligand peut activer ou inactiver préférentiellement une voie de signalisation par rapport à d’autres. L’objectif principal de ce projet de thèse était d’analyser ce phénomène de biais de signalisation chez les récepteurs 7TMs en utilisant les récepteurs aux chimiokines comme modèle. Cette famille de récepteurs est un modèle intéressant pour étudier le biais de signalisation à cause de l’apparente redondance du système chimiokine :un même récepteur peut lier plusieurs chimiokines différentes, et une même chimiokine peut également lier plusieurs récepteurs différents. Nous avons étudié les voies de signalisation chez les récepteurs CCR2, CCR5 et CCR7 grâce à l’utilisation de biosenseurs BRET permettant d’identifier précisément les sous-unités Gα activées et d’analyser le recrutement de la β-arrestine 2. Au moment de débuter ce travail de doctorat, le récepteur CCR7 et ses deux chimiokines CCL19 et CCL21 était l’un des seuls exemples décrit dans la littérature de biais de signalisation d’un récepteur en réponse à ses ligands endogènes. Cette étude de référence montrait que les deux chimiokines activaient la voie de signalisation protéine G mais que seul CCL19 induisait le recrutement de la β-arrestine 2. Une deuxième étude publiée ultérieurement a cependant observé que CCL21 recrutait également la β-arrestine 2. A l’aide des biosenseurs BRET, nous avons montré que CCL19 et CCL21 sont capables d’activer le même panel de sous-unité Gα (Gαi1, Gαi2, Gαi3, Gαoa et Gαob) ainsi que de recruter la β-ar, Doctorat en Sciences biomédicales et pharmaceutiques (Médecine), info:eu-repo/semantics/nonPublished
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- 2019
38. Diagnostic value of the pulmonary vein-to-right pulmonary artery ratio in dogs with pulmonary hypertension of precapillary origin
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Roels, E., Merveille, Anne Christine, Moyse, Evelyne, Gomart, Samantha, Clercx, Cécile, McEntee, Kathleen, Roels, E., Merveille, Anne Christine, Moyse, Evelyne, Gomart, Samantha, Clercx, Cécile, and McEntee, Kathleen
- Abstract
Introduction: Non-invasive diagnosis of pulmonary hypertension (PH) relies on estimation of pulmonary arterial pressure (PAP) via Doppler echocardiographic measurement of tricuspid regurgitation pressure gradient (TRPG). The pulmonary vein-to-right pulmonary artery ratio (PV/PA) recently has been described for the detection of pulmonary venous congestion. Whether this variable could be used to detect the presence of precapillary PH is unknown. The objective of the present study was to investigate the diagnostic value of PV/PA for prediction of TRPG, as a surrogate of PAP, in dogs with PH of precapillary origin. Animals: Sixty-seven client-owned dogs were included in the study. Methods: This was a retrospective study. Dogs with a measurable TRPG were included and classified into group 1 (TRPG < 30 mmHg), group 2 (TRPG 30–49 mmHg), group 3 (TRPG 50–80 mmHg), or group 4 (TRPG > 80 mmHg). The PV/PA, acceleration time-to-ejection time ratio of pulmonary artery flow, main pulmonary artery diameter-to-aortic diameter ratio, and right pulmonary artery distensibility index were measured retrospectively from cineloops in each dog. Results: The PV/PA measured by both two-dimensional (2D) and time-motion mode(MM) echocardiography decreased proportionally with PH severity. Using regression analysis, PV/PA (2D) was identified as the strongest predictor for TRPG (R2 = 0.70, p < 0.0001) among other variables studied, with a good diagnostic accuracy (area under the curve = 0.94) for moderate PH (TRPG > 50 mmHg) using a cutoff value of < 0.70 (sensitivity = 96%, specificity = 82%). Conclusions: Results of the present study suggest that PV/PA can be useful as an additional, non-invasive, and indirect variable to identify precapillary PH in dogs., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2019
39. Chemerin/CMKLR1 axis influences pulmonary arterial pressure and the NO signaling pathway
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Printemps de la Cardiologie (Avril 2019: Lille, France), Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Hubesch, Geraldine, Springael, Jean-Yves, Dewachter, Laurence, McEntee, Kathleen, Printemps de la Cardiologie (Avril 2019: Lille, France), Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Hubesch, Geraldine, Springael, Jean-Yves, Dewachter, Laurence, and McEntee, Kathleen
- Abstract
info:eu-repo/semantics/published
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- 2019
40. Respective roles of genetic background and high fat diet in a rodent model of metabolic syndrome
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Printemps de la Cardiologie (Avril 2019: Lille, France), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Jespers, Pascale, Vegh, Grégory, Verhoeven, Catherine, Dewachter, Laurence, McEntee, Kathleen, Printemps de la Cardiologie (Avril 2019: Lille, France), Hubesch, Geraldine, Hanthazi, Alienor, Acheampong, Angela, Watu Malu Wembonyama, Cécile, Jespers, Pascale, Vegh, Grégory, Verhoeven, Catherine, Dewachter, Laurence, and McEntee, Kathleen
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info:eu-repo/semantics/published
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- 2019
41. Cardiovascular biomarkers in dogs with systemic inflammatory response syndrome.
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Gommeren, Kris, Desmas, Isabelle, Garcia, Alexandra, Clercx, Cécile, McEntee, Kathleen, Merveille, Anne-Christine, Peeters, Dominique, Gommeren, Kris, Desmas, Isabelle, Garcia, Alexandra, Clercx, Cécile, McEntee, Kathleen, Merveille, Anne-Christine, and Peeters, Dominique
- Abstract
To measure plasma N-terminal fragments of pro-B-type natriuretic peptides (NT-proBNP) and cardiac troponin T (cTnT) concentration in hospitalized dogs and relate these markers to underlying conditions and evaluate their potential as prognostic markers in dogs with systemic inflammatory response syndrome (SIRS)., info:eu-repo/semantics/published
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- 2019
42. Chemerin influences endothelin- and serotonin-induced pulmonary artery vasoconstriction in rats
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Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Degroot, Gaëtan-Nagim, Springael, Jean-Yves, Lybaert, Pascale, Dewachter, Laurence, McEntee, Kathleen, Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Degroot, Gaëtan-Nagim, Springael, Jean-Yves, Lybaert, Pascale, Dewachter, Laurence, and McEntee, Kathleen
- Abstract
info:eu-repo/semantics/published
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- 2019
43. Interbreed variation of biomarkers of lipid and glucose metabolism in dogs
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Gomez-Fernandez-Blanco, Carlos, primary, Peeters, Dominique, additional, Moyse, Evelyne, additional, Farnir, Frédéric, additional, Höglund, Katja, additional, Gouni, Vassiliki, additional, Wiberg, Maria, additional, Lundgren Willesen, Jakob, additional, Hanås, Sofia, additional, McEntee, Kathleen, additional, Tiret, Laurent, additional, Häggström, Jens, additional, Lohi, Hannes, additional, Chetboul, Valérie, additional, Fredholm, Merete, additional, Seppälä, Eija H, additional, Lequarré, Anne-Sophie, additional, and Merveille, Anne-Christine, additional
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- 2018
- Full Text
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44. Interbreed variation of biomarkers of lipid and glucose metabolism in dogs
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Gomez-fernandez-blanco, Carlos, Peeters, Dominique, Moyse, Evelyne, Farnir, Frédéric, Höglund, Katja, Gouni, Vassiliki, Wiberg, Maria, Lundgren Willesen, Jakob, Hanås, Sofia, Mcentee, Kathleen, Tiret, Laurent, Häggström, Jens, Lohi, Hannes, Chetboul, Valérie, Fredholm, Merete, Seppälä, Eija H, Lequarré, Anne-sophie, Merveille, Anne-christine, Gomez-fernandez-blanco, Carlos, Peeters, Dominique, Moyse, Evelyne, Farnir, Frédéric, Höglund, Katja, Gouni, Vassiliki, Wiberg, Maria, Lundgren Willesen, Jakob, Hanås, Sofia, Mcentee, Kathleen, Tiret, Laurent, Häggström, Jens, Lohi, Hannes, Chetboul, Valérie, Fredholm, Merete, Seppälä, Eija H, Lequarré, Anne-sophie, and Merveille, Anne-christine
- Abstract
Background Markers of lipid and glucose metabolism are used in both clinical practice and research. Detection of abnormal laboratory results often relies on species‐specific reference intervals, but interbreed variation can also affect data interpretation. Objectives The purpose of the present study was to compare concentrations of selected biochemical variables among different dog breeds. Methods We analyzed a database containing information on biochemical variables from 534 dogs belonging to nine different breeds. All dogs were confirmed to be healthy based on history, physical examination, and ancillary tests. Concentrations of glucose, fructosamine, insulin, cholesterol, triglycerides, fatty acids, and C‐reactive protein were compared using the nonparametric Kruskal–Wallis and Dunn's tests. Results All variables tested showed significant interbreed differences, although all breeds remained within the previously established RIs for dogs. Fructosamine, insulin, and cholesterol showed a wide interbreed variation that could affect the interpretation of results. Conclusions Breed is an important factor to consider when assessing energy metabolism in dogs, especially for markers like fructosamine, insulin, and cholesterol, which vary considerably among breeds.
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- 2018
45. Effects of the cardiac myosin activator Omecamtiv-mecarbil on severe chronic aortic regurgitation in Wistar rats.
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Oumeiri, Bachar El, McEntee, Kathleen, Annoni, Filippo, Herpain, Antoine, Vanden Eynden, Frédéric, Jespers, Pascale, Van Nooten, Guido, Van De Borne, Philippe, Oumeiri, Bachar El, McEntee, Kathleen, Annoni, Filippo, Herpain, Antoine, Vanden Eynden, Frédéric, Jespers, Pascale, Van Nooten, Guido, and Van De Borne, Philippe
- Abstract
Aortic regurgitation (AR) is a valvular disease that can lead to systolic heart failure. Treatment options besides cardiac surgery are limited and consequently severe AR is associated with higher mortality and morbidity when not operated. In this investigation, we examined the effects of a novel cardiac myosin activator, Omecamtiv-mecarbil (OM), in rats with chronic severe AR., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2018
46. Effects of obesity on the pulmonary vs systemic circulation
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First PhD Student Day of the "Ecole Doctorale Vétérinaire" (18 mai 2018: Université de Liège), Hubesch, Geraldine, Hanthazi, Alienor, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Lybaert, Pascale, Dewachter, Laurence, McEntee, Kathleen, First PhD Student Day of the "Ecole Doctorale Vétérinaire" (18 mai 2018: Université de Liège), Hubesch, Geraldine, Hanthazi, Alienor, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Lybaert, Pascale, Dewachter, Laurence, and McEntee, Kathleen
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info:eu-repo/semantics/nonPublished
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- 2018
47. Effects of obesity on vasoreactivity of the pulmonary and systemic circulation in the rat
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Belgian Working Group of Basic Research in Cardiology (16/11/2018: Louvain-la-Neuve), Hubesch, Geraldine, Hanthazi, Alienor, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Dewachter, Laurence, McEntee, Kathleen, Belgian Working Group of Basic Research in Cardiology (16/11/2018: Louvain-la-Neuve), Hubesch, Geraldine, Hanthazi, Alienor, Hupkens, Emeline, Jespers, Pascale, Vegh, Grégory, Dewachter, Laurence, and McEntee, Kathleen
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info:eu-repo/semantics/nonPublished
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- 2018
48. Effect of hyperoxia during early stage of reperfusion after ST elevation myocardial infarction in rats :biochemical and cellular assessment of reperfusion injury.
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Belgian Working Group of Basic Research in Cardiology (16/11/2018: Louvain-la-Neuve), Acheampong, Angela, Van De Borne, Philippe, McEntee, Kathleen, Belgian Working Group of Basic Research in Cardiology (16/11/2018: Louvain-la-Neuve), Acheampong, Angela, Van De Borne, Philippe, and McEntee, Kathleen
- Abstract
info:eu-repo/semantics/nonPublished
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- 2018
49. Interbreed variation in serum serotonin (5-hydroxytryptamine) concentration in healthy dogs.
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Höglund, Katja, Häggström, Jens, Lohi, Hannes, Lequarré, Anne Sophie, Hanas, Sofia, Merveille, Anne-Christine, Chetboul, Valérie, Seppälä, Eija, Fredholm, Merete, Gouni, Vassiliki, Ljungvall, Ingrid, Wiberg, Maria, Lundgren Willesen, J., McEntee, Kathleen, Mejer Sørensen, L., Tiret, Laurent, Höglund, Katja, Häggström, Jens, Lohi, Hannes, Lequarré, Anne Sophie, Hanas, Sofia, Merveille, Anne-Christine, Chetboul, Valérie, Seppälä, Eija, Fredholm, Merete, Gouni, Vassiliki, Ljungvall, Ingrid, Wiberg, Maria, Lundgren Willesen, J., McEntee, Kathleen, Mejer Sørensen, L., and Tiret, Laurent
- Abstract
Serotonin (5-hydroxytryptamine [5-HT]) has several biological functions. In different species, excessive 5-HT has been linked to valvular lesions, similar to those seen in dogs with myxomatous mitral valve disease. Previous studies suggest higher 5-HT in healthy Cavalier King Charles Spaniels (CKCSs), a breed highly affected by myxomatous mitral valve disease, compared to other breeds., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2018
50. Effects of chemerin on rat pulmonary artery smooth muscle cells proliferation, resistance to apoptosis and migration
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First PhD Student Day of the "Ecole Doctorale Vétérinaire" (07/05/2018: Université de Liège), Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Dubois, Christine, Springael, Jean-Yves, Dewachter, Laurence, McEntee, Kathleen, First PhD Student Day of the "Ecole Doctorale Vétérinaire" (07/05/2018: Université de Liège), Hanthazi, Alienor, Jespers, Pascale, Vegh, Grégory, Dubois, Christine, Springael, Jean-Yves, Dewachter, Laurence, and McEntee, Kathleen
- Abstract
info:eu-repo/semantics/nonPublished
- Published
- 2018
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